HELP - clutch release arm removal

[Knight77911]

Help, I'm trying to get my clutch release arm off, but there appears to be a pin preventing it from coming off the shaft. Is this normal? None of my manuals show the pin. I tried pounding it out, even with heat, but no luck. Is my only option to drill it out?

[Flat6pac]

I believe it’s tapered.
Don’t put it back in, years later the factory did away with it.
Bruce

[Knight77911]

How hard can I wack on it?

[Knight77911]

Or do I just drill it?

[proporsche]

you should use impact puncher or elbow grease plus hammer & puncher..........
Ivan

[john walker's workshop]

Not tapered. Air hammer with a pointed bit to get it started then hammer and punch. If it's free on the shaft, it really doesn't need to be removed to separate the trans from the engine. Just the short arm.

[$yncro]

Originally Posted by john walker's workshop

Not tapered. Air hammer with a pointed bit to get it started then hammer and punch. If it's free on the shaft, it really doesn't need to be removed to separate the trans from the engine. Just the short arm.

I did this a yr ago and yup no need to take it off for the trans removal
However u have to maneuver the horseshoe spring ( omega), I remember taking
The small clip off the omega to make it rotate a bit.
Good luck!

[Knight77911]

So, I'm trying to replace the omega spring. Not removing the transmission. I need to get this arm off so that I can get to the circlip for the omega spring.

[pmax]

Persistence and patience assuming it’s already lubed with antiseize.

[Walt Fricke]

I did this a couple of times last fall, starting at the track. Wasn't hard to drive out (but yours may have rusted in place).

I think it is a good idea, as otherwise only the circlip holds the two arms on. I've been able to install and remove that circlip with my fingers on occasion, and once lost the whole shebang in a race when the circlip on an earlier version (no harp, no pin) fell off (Sebring is bumpy).

Porsche must have concluded it was worth a few less manufacturing steps to leave the pin out.

[Knight77911]

No amount of force would get it out. I'm drilling it out...Hopefully I'm not going to be buying a new clutch arm. Whish me luck!

[Walt Fricke]

Good luck.

The good news is that you won't be damaging the vertical shaft, as it has a circumferential groove all the way around, in which the pin fits. And it is not a tight fit. And if you bugger the diameter of the pin bores, you can do without finding a new pin to fit, etc.

If you want to avoid placing all the eggs in the one small circlip basket, you could drill a hole vertically in the vertical shaft, tap it, and use a wide washer and small bolt to add suspenders to the circlip belt. If the clip fails, the arm can't fall off. G-Box did that on my box after the clip came off, so that won't happen again - even machined a washer with raised edges which snuggle up to the clip around the sides of the shaft.

[Knight77911]

Thank you all for your help! I really appreciate you all!

[proporsche]

i do not see,did we mentioned? If you have a blowtorch or another butane torch ..heating it even red hot will help a lot

Ivan

[Knight77911]

Originally Posted by proporsche

i do not see,did we mentioned? If you have a blowtorch or another butane torch ..heating it even red hot will help a lot

Ivan

Thanks Ivan,

Yeah, I tried adding a ton of heat to it, but it just wouldn't budge. I've ordered a new arm. I'm just going to cut the old one off. I think I compromised it, trying to tap it. Didn't get the bore straight.

Thanks everyone.

[pmax]

That doesn’t sound advisable. You might damage the fork shaft, then you need to drop the drivetrain to replace that etc

The misaligned bore should be ok. Just get the pin out ...

[john walker's workshop]

You need more patience. Not everything is easy in this biz.

[Knight77911]

Ha! Probably more patience and a better lift, and more tools.

[Knight77911]

Originally Posted by john walker's workshop

You need more patience. Not everything is easy in this biz.

Holy crap. I didn't realize that you, John Walker replying, was THE John Walker. Thank you sir for taking time to reply!

You are quite the legend and I am honored. If you have time, I may want to talk to you about rebuilding this old '77 915 transmission. I'm not sure who else to turn to for that work.

[john walker's workshop]

Too funny.